doc: remove obsolete documentation

See http://kill-bill.org instead.

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
osgi-bundles: extract analytics and meter modules

See:

* https://github.com/killbill/killbill-analytics-plugin
* https://github.com/killbill/killbill-meter-plugin

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
jaxrs: add missing special case in InvoiceApiExceptionMapper

This was failing a server test.

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>